Answer / k.prakashchandra

It is used to influence the electric field within the
insulation layer.The semicon layer has to removed at the
termination at least 6-9 inches below the lugs ,as
otherwise there will be short circuit along this layer.As
this layer is not doped, you have to treat it as a conductor.

Answer / paramesha r l

Purpose of semiconducting layer is to maintain uniform distribution of Poynting vector i.e., P=ExH in insulator or otherwise power P=EXH densely concentrated at insulation point where two phase are comes in contact.

what Semiconducting layer does is equipotential over outer surface of insulating medium as it is like a free space.
Semiconducting layer needed to remove at termination i.e, 35 to 50 cm from lugs point.
If semiconducting layer not removed at termination leakage current flows between conductor to semiconducting which is hardly a distance of 5mm at eventually it fails.

Answer / anil

The purpose of Semi conducting tape is only to transmit the
heat from insulation to cu. tape over it. this heat is
produced in Core due to flow of current. Further, to
TERMINATE THE CABLES, ALL CONDUCTING AND SEMICONDUCTING TAPE
IS REMOVED FROM INSULATION AS current in cable can also come
into insulation and it may be damage the cable, dangerous to
persons working.

Answer / marlo

Usually HV cable has a semi conducting, one purpose it to protect your connected load in severe damage and the system as well. In the case of unexpected faults along with this cable,any small leakage current detected will trip its protection.

we have 350 kva capcitor bank which is not showing KW. dose capacitor shows kW OR not.

2 Answers  

---

1.In two wattmeter method if one wattmeter shows Negative reading then wat is reason? 2.Wat is the reason for low voltage in houses? 3.Wat is meant by current and voltage? wat is difference between the two?

10 Answers   Engineering,

---

what is the difference b/w pvc cu conductor and cu breaded wire..?

1 Answers  

---

how many earthing required for ups, what should be the earth voltages

9 Answers   Juniper Networks,

---

What is the difference between tie bus and bus coupler?

1 Answers  

---

anyone please send transformer parameter design formulas & details of tap changer ? plz i have interview this week its more helpful for me ?

0 Answers  

---

we have require a Motor (1500kW, 6.6kV, 50Hz) which shall operate at 1500rpm during 30min and after it shall run on 500rpm during 15min. The same cycle shall be repetitive during the whole working days. Which method is best and economic to achieve such type of task. VFD, VVFD, Pole changing motor etc.

0 Answers   MTN,

---

lamination figures

0 Answers  

---

Hi How can you start-up the 40w tube lite with 230v AC/DC without using any choke/Coil.

5 Answers  

---

please tell me formula of 3 phase induction motor under condition{1]when we 3 phase motor starts without load in star or delta connection?thanks

1 Answers  

---

What is over fluxing in transformer?

1 Answers  

---

how the reverse power relay acts..

2 Answers  

---